137975394381 has 16 divisors (see below), whose sum is σ = 206115578688. Its totient is φ = 81361411200.

The previous prime is 137975394353. The next prime is 137975394391. The reversal of 137975394381 is 183493579731.

137975394381 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 137975394381 - 2⁶ = 137975394317 is a prime.

It is a super-3 number, since 3×137975394381³ (a number of 34 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (137975394311) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 56499760 + ... + 56502201.

It is an arithmetic number, because the mean of its divisors is an integer number (12882223668).

Almost surely, 2^137975394381 is an apocalyptic number.

137975394381 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

137975394381 is a deficient number, since it is larger than the sum of its proper divisors (68140184307).

137975394381 is a wasteful number, since it uses less digits than its factorization.

137975394381 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 113002012.

The product of its digits is 17146080, while the sum is 60.

The spelling of 137975394381 in words is "one hundred thirty-seven billion, nine hundred seventy-five million, three hundred ninety-four thousand, three hundred eighty-one".